Prosecution Insights
Last updated: October 02, 2026
Application No. 18/548,755

TRANSCUTANEOUS AURICULAR VAGAL NERVE STIMULATION FOR SUBARACHNOID HEMORRHAGES

Final Rejection §103
Filed
Sep 01, 2023
Priority
Mar 04, 2021 — provisional 63/156,792 +1 more
Examiner
STOKLOSA, JOSEPH A
Art Unit
3700
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Washington University
OA Round
3 (Final)
64%
Grant Probability
Moderate
4-5
OA Rounds
10m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allowance Rate
252 granted / 395 resolved
-6.2% vs TC avg
Strong +20% interview lift
Without
With
+19.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 11m
Avg Prosecution
15 currently pending
Career history
418
Total Applications
across all art units

Statute-Specific Performance

§101
2.2%
-37.8% vs TC avg
§103
50.0%
+10.0% vs TC avg
§102
23.6%
-16.4% vs TC avg
§112
20.4%
-19.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 395 resolved cases

Office Action

§103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Response to Arguments Applicant’s arguments, see Remarks, filed 9/1/2026, with respect to the rejection(s) of claim(s) 1-7, 9-10, 14-19, 21-24 under 35 USC 103a have been fully considered and are persuasive. Therefore, the rejection has been withdrawn. However, upon further consideration, a new ground(s) of rejection is made in view of Manogue in view of Ayata et al. (WO 2020106833 A1) and Schwab. The previous Final Rejection of 7/2/2026 has been withdrawn. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim(s) 1-5, 8, 10, 14-17, and 21-24 is/are rejected under 35 U.S.C. 103 as being unpatentable over Manogue (US 2020/0094055) in view of Ayata et al. (WO 2020/106833). With regard to claims 1 and 20, Manogue discloses a method of treating an inflammation in a patient comprising; stimulating in a patient suffering from inflammation, a patient’s vagus nerve with an electrical signal to achieve a therapeutic effect for treating the inflammation (e.g. paragraph 29 and 39), and re-stimulating the patient's vagus nerve a second time within 24 hours of a first stimulation, wherein the electrical signal for the first stimulation and a second stimulation are the same (e.g. paragraph 51). Manogue fails to explicitly teach identifying the patient as having a subarachnoid hemorrhage or as being at risk for post-SAH inflammatory response and the stimulation is in a patient suffering from inflammation associated with subarachnoid hemorrhage. Manogue details the vagal stimulation protocol is designed to treat inflammation broadly but stops short of identifying the specific type of inflammation being subarachnoid hemorrhage inflammatory response. Ayata discloses a system and method for vagal nerve stimulation for the purpose of treating aneyrtsm formation, growth and rupture, and improving post rupture outcomes. Specific port rupture outcomes being the inflammatory response and specifically for treating inflammatory response from a subarachnoid hemorrhage as set forth in paragraph 97. It would have been obvious to one having ordinary skill in the art at the time the invention was made to modify the system as taught by Manogue with adapting the system and method to specifically treat subarachnoid hemorrhage inflammation since such a modification would provide the predictable results of providing a similar known treatment method for a specific type of disorder. Examiner notes that any disclosure of treatment specifically for subarachnoid hemorrhage inflammation would necessarily require the steps of identifying the individual as first having subarachnoid hemorrhage inflammation. In short, there must be a reasonable expectation that a user would not administer treatment for a particular disorder without first ensuring the patient is suffering from the disorder in order to avoid potential patient harm. Regarding Claims 2 and 14, Manogue discloses wherein the stimulation is transcutaneous stimulation of the vagus nerve (e.g. paragraph 9). Regarding Claims 3 and 15, Manogue discloses wherein the stimulation is provided via a first electrode and a second electrode, wherein the first electrode and the second electrode are attached to the concha of the patient's ear (e.g. paragraph 40). Regarding Claims 4 and 16, Manogue discloses wherein the first electrode and the second electrode are attached to the patient's left ear (e.g. paragraph 40, 52 and Fig. 1). Regarding Claims 5 and 17, Manogue discloses the stimulation is provided to the auricular branch of the vagus nerve where the vagus nerve travels in the pinna of the ear (e.g. paragraph 20 and 35). Regarding Claims 10, see rejection of Claim 1 above. Manogue further discloses one or more electrodes included in the device (e.g. paragraph 61). Regarding Claim 21-24, Manogue discloses wherein a signal current is 0.4 mA, a pulse width is 250us, a signal frequency is 20 Hz, and a signal on-time is twenty minutes (see par. 42) Claim(s) 6-7, 9, and 18-19 is/are rejected under 35 U.S.C. 103 as being unpatentable over Manogue in view of Ayata as applied above, further in view of Schwab et al. (US 2017/0120046). Regarding Claims 6 and 18, Manogue in view of Ayata as applied above discloses stimulation is paired with pharmacological therapies (see par. 36), but does not specify antibiotics or anti- inflammatory medication. Schwab discloses a similar treatment for inflammation that combines electrical stimulation with anti-inflammatory medication (see par. 30). It would have been obvious to one of ordinary skill in the art at the time of the invention to include pharmacological agents because Schwab teaches it helps to modulate nervous system activity (see par. 41). Regarding Claims 7 and 19, Manogue in view of Ayata, does not disclose a cuff electrode. Schwab discloses an implanted electrode for direct stimulation of the nerve (see par. 54 and 61). It would have been obvious to one of ordinary skill in the art at the time of the invention to use a cuff electrode placed directly on the vagus nerve because Schwab teaches direct stimulation can be beneficial in some applications (see par. 40). Additionally, or alternatively, Schwab teaches direct stimulation is a known technique for achieving stimulation of the vagus nerve and it would have been obvious to one having ordinary skill in the art at the time the invention was made to select between any known technique for stimulating the vagus nerve as long as there would be a reasonable expectation of success. Regarding Claim 9, Manogue in view of Ayata disclose the invention as claimed but fails to teach receiving and analyzing a plurality of patient attributes associated with the patient; analyzing the plurality of patient attributes to determine that the patient is at risk for a spontaneous subarachnoid hemorrhage (SAH) based on the analyzed patient attributes. Schwab further discloses receiving and analyzing a plurality of patient attributes associated with the patient; analyzing the plurality of patient attributes to determine that the patient is at risk for a spontaneous subarachnoid hemorrhage (SAH) based on the analyzed patient attributes (see par. 6, 65-67). It would have been obvious to one of ordinary skill in the art at the time of the invention to determine SAH risk using the patient's physiological parameters because Schwab teaches, they are associated with immune function and can predict how the system will behave (e.g. paragraphs 61 and 64). Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). Applicant’s amended claims on 1/6/2026 necessitated the previous new grounds of rejection in Final Rejection 7/2/2026. That Final Rejection has been withdrawn and replaced with the current Final Rejection. A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JOSEPH A STOKLOSA whose telephone number is (571)272-1213. The examiner can normally be reached M-F 930AM-530PM. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Jonathan Teixeira-Moffat can be reached at 571-272-4390. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /JOSEPH A STOKLOSA/Supervisory Patent Examiner, Art Unit 3794
Read full office action

Prosecution Timeline

Sep 01, 2023
Application Filed
Sep 25, 2025
Non-Final Rejection mailed — §103
Dec 09, 2025
Examiner Interview Summary
Jan 06, 2026
Response Filed
Jul 02, 2026
Final Rejection mailed — §103
Aug 19, 2026
Applicant Interview (Telephonic)
Sep 01, 2026
Response after Non-Final Action
Sep 15, 2026
Final Rejection mailed — §103 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

4-5
Expected OA Rounds
64%
Grant Probability
84%
With Interview (+19.7%)
3y 11m (~10m remaining)
Median Time to Grant
High
PTA Risk
Based on 395 resolved cases by this examiner. Grant probability derived from career allowance rate.

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